1、AECMA STANDARD NORME AECMA AECMA NORM Edition approved for publication 2001-11-30 prEN 2346-003 Edition P 1 November 2001 Comments should be sent within six months after the date of publication to AECMA-STAN Mr Peuetta Gulledelle 94 Electrical Domain 8-1200 BRUXELLES PUBLISHED BY THE EUROPEAN ASSOCI
2、ATION OF AEROSPACE INDUSTRIES - STANDARDIZATION (AECMA-STAN) Gulledelle 94 - 8-1200 BRUXELLES - Tel. (+32) 2 775 81 10 - Fax. (+32) 2 775 81 11 ICs: 49.060 Descriptors: ENGLISH VERSION Aerospace series Cable, electrical, fire resistant Operating temperatures between - 65 OC and 260 OC Part 003: DL f
3、amily, single core Prod u ct standard Srie arospatiale Cbles lectriques rsistant au feu Tempratures de fonctionnement comprises entre - 65 “C et 260 “C Partie 003 : Famille DL, fil simple Norme de produit Luft- und Raumfahrt Feuerbestndige elektrische Leitungen Betriebstemperaturen zwischen - 65 “C
4、und 260 “C Teil 003: DL-Familie, eine Leitung Produktnorm This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA-STAN (The European Association of Aerospace Industries - Standardization). It is published on green paper for the needs of the European Aerospace Industry
5、. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification o
6、f the standard. After examinafion and review by users and formal agreement of AECMA-STAN it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for formal vote. Page 2 prEN 2346-003: 2001 Contents 1 2 3 4 4.1 4.2 4.3 4.4 5 6 7 a 9 10 11 Normative references
7、 . Definitions . Materials and construction . . . Number of cores . Colour coding of cores Required characteristics . . Quality assurance . Designation . Identification, markin . Packaging, labelling and delivery lengths . Technical specification Page 3 3 3 3 3 4 4 4 4 4 7 7 7 7 7 Page 3 prEN 2346-0
8、03: 2001 I Scope This standard specifies the characteristics of fire resistant electrical cables for use in the on-board electrical systems of aircraft at operating temperatures between - 65 “C and 260 “C. 2 Normative references This European Standard incorporates by dated or undated reference provi
9、sions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it b
10、y amendment or revision. For undated references the latest edition of the publication referred to applies. IEC 28: 1925 EN 2234 EN 2346-002 EN 3042 EN 3475 * EN 3475-100 International standard of resistance for copper Aerospace series - Cable, electrical, fire resistant - Technical specification 1)
11、Aerospace series - Cable, electrical, fire resistant - Operating temperatures between - 65 “C and 260 “C - Pari 002: General 1) Aerospace series - Quality assurance - EN aerospace products - Qualification procedure Aerospace series - Cables, electrical, aircraft use - Test methods Aerospace series -
12、 Cables, electrical, aircraft use -Test methods - Pari 100: General 1) 3 Definitions For the purposes of this standard, the definitions given in EN 3475-100 apply. 4 Materials and construction 4. I Materials Conductors: Individual strands used for the conductors shall be cylindrical and shall be: -
13、of nickel clad copper alloy for nominal cross sections of 0,4 mm2 (004); - of nickel clad copper for nominal cross sections 2 0,6 mm2 (006). The copper shall meet the requirements of IEC 28 and the copper alloy the requirements of EN 2234. Insulation: The insulation shall comply with the requirement
14、s of EN 2234. * And all its parts quoted in this standard 1) Published at AECMA Prestandard at the date of publication of this standard Page 4 prEN 2346-003: 2001 4.2 Construction See table 1. Table 1 Code lumber 004 006 o1 o o1 2 020 030 050 O90 140 220 340 420 530 680 Uominal cross section mm2 o14
15、 05 1 ,o 12 2 3 5 9 14 22 34 42 53 68,O - 4WG a - 22 20 18 16 14 12 10 8 6 4 2 1 O O0 - Number of strands 19 19 19 19 37 37 37 127 27 x 7 37 x 12 37x I9 37 x 23 37 x 29 37 x 37 a Nearest AWG American wire gauge Nominal liameter of strands mm 0,15 0,20 0,25 0,30 0,25 0,32 0,40 0,30 0,30 0,25 0,25 0,2
16、5 0,25 0,25 zonductive resistance at 20 OC Wkm max. 80,90 44,30 27,90 18,80 13,90 8,94 5,61 3,14 1,98 1,25 0,81 0,60 0,52 0,40 Zonductor diameter mm max. 0,80 1 ,O4 1,29 133 1,82 2,28 2,88 4,40 5,50 6,80 8,60 9,50 10,70 12,lO External Diameter mm min. 1 ,go 2,15 2,40 2,60 2,95 3,40 3,95 540 6,45 7,9
17、0 9,65 10,60 1 I ,75 13,OO - - mm max. 2,lO 2,36 2,65 2,90 3,20 3,75 4,30 5,85 7,OO 8,40 10,30 11,25 12,45 14,OO - 7 Mass g/m max. 990 12,7 16,9 20,8 27,7 40,2 58,5 104,O 156,O 237,O 364,O 444,O 557,O 698,O - Jumber of nissing strand c O O O O O O O O O O 2 2 3 3 4.3 Number of cores See EN 2346-002.
18、 4.4 Colour coding of cores See EN 2346-002. 5 Required characteristics According to EN 2234 and EN 3475-100. See table 2 and table 3. 6 Tests See table 2. Page 5 prEN 2346-003: 2001 EN 3475- Designation of the test 201 a Visual examination 202 a Mass Remarks Ap p I ica ble Applicable Table 1 203a I
19、 Dimensions Voltage proof test - Immersion test Voltage proof test - Dry test 1 Applicable Table 1 Applicable EN 2234 Applicable EN 2234 301 a I Electrical resistance Der unit lenath I ADDlicable Table I Accelerated age ng Shrinkage and delamination Delamination and blocking Thermal shock Bending at
20、 ambient temperature Cold bend test Flammability - Method 1 Fire resistance Air-excl uded ageing Thermal endurance Resistance to fluids Humidity resistance Wrap back test Differential scanning calorimeter (DSC test) Dynamic cut-through Notch propagation Scrape abrasion 302 a 302 a Applicable EN 2234
21、 Temperature: (31 O f 5) “C Applicable EN 2234 Temperature: (310 f 5) “C Maximum shrinkage: 13 mm Applicable EN 2234 Temperature: (310 f 5) OC Applicable EN 2234 Temperature: (260 f 5) “C Maximum shrinkage: 1,5 mm Applicable EN 2234 Applicable EN 2234 Temperature: (- 55 t 2) “C Applicable EN 2234 Ex
22、tinction time: 3 s Applicable, load 170 g for 004 and 340 g for 2 006 Applicable Temperature: (1 80 f 5) OC - 336 h Applicable EN 2234.40 O00 h at 260 OC Applicable EN 2234 Not applicable Applicable Not applicable Applicable to codes 004 to 050 included Temperature 260 “C 1 hour. See table 3. Applic
23、able to codes 004 to 050 included Depth notch: 0,25 mm Applicable to codes 004 to 050 included See table 3. 303 a I Insulation resistance I Applicable EN 2234 304 a I Surface resistance I Amlicable EN 2234 305 a 401 a 402 a 403 a 404 a 405 a 406 a 407 a 408 409 a 410 a 411 a 412 a 413 a 414 a 501 a
24、502 a 503 a Overload resistance Applicable to code 006 EN 2234 Ti = (310 f 5) “C T2 = (450 & 5) “C continued Page 6 prEN 2346-003: 2001 EN 3475- Designation of the test 504 a Torsion Table 2 (concluded) Remarks Applicable to codes 004 to 050 included T3 = (260 f 5) “C T4 = (275 15) “C 507 a 508 a Pl
25、ating thickness 509 a Solderability I Adherence of plating 505 a I Tensile test on conductors and strands Applicable Applicable Not applicable I Applicable strength and elongation of extruded insulation, sheath and jacket material - 506 a I Plating continuity Not applicable I Applicable 601 a 602 a
26、603 a 604 a Smoke density Not applicable Toxicity Not applicable Resistance to wet ark arc tracking Not applicable Resistance to dry arc propagation Not applicable 605 a 701 a 702 a 703 a 704 a 511 a I Cable to cable abrasion Wet short circuit test Not applicable Strippability and adherence of insul
27、ation to Strippability applicable the conductor Adherence not applicable Braid creen pushback capability Not applicable Permanence of manufacturers marking Applicable Flexibility Not applicable I Not applicable 705 a 706 I 512a I Flexureendurance I Not amlicable Contrast measurement Not applicable L
28、aser markability Not applicable Code number 004 006 o1 o o1 2 020 030 050 Table 3 EN 3475-501 Nominal cross section Dynamic cut-through mm I I EN 3475-503 Scrape abrasion 20C I 260 “C 45 55 70 85 95 105 120 7 7 8 8 9 10 Page 7 prEN 2346-003: 2001 Description block FIRE RESISTANT ELECTRICAL CABLE 7 Q
29、uality assurance See EN 3042. Identity block EN2346-003A420 8 Designation EXAMPLE: A- Number of this standard Code for number of cores (see EN 2346-002, table 1) 9 Identification, marking See EN 2346-002. 10 See EN 2234. Packaging, labelling and delivery lengths II Technical specification See EN 2234.
